Since its origins of the 1970s up to the present, the musical themes of Heavy Metal along with the associated subcultures have been the prey of various moral ideologies, particularly of a conservative matter. Moral panics have ensued in the past over various qualities of the genre, and there is still residual stigma to be found today, much of which is based upon misperceptions of cause and effect.
Knott IV, Frank, "Heavy Metal, Moral Panic, and Residing Stigma" (2021). Spring Showcase for Research and Creative Inquiry. 183.